Accession Number : AD0743777

Title :   Random Bias Holograms,

Corporate Author : LAVAL UNIV QUEBEC LABORATOIRE D'OPTIQUE ET HYPERFREQUENCES

Personal Author(s) : Arsenault,H. H.

Report Date : 18 OCT 1971

Pagination or Media Count : 5

Abstract : To make holograms of three-dimensional diffuse objects, the conventional technique consists of illuminating the photographic plate with a uniform reference beam that is modulated by the light reflected from the object. This set-up requires a number of beam splitters, beam expanders, pinhole filters and mirrors. If instead of a uniform reference beam, a reference beam having large random variations of amplitude from point to point is used, it is still possible under certain conditions to reconstruct the object from the hologram. A method is described for making holograms of three-dimensional objects using only a laser, one mirror, one diffuser, and a photographic plate. Such holograms may be reconstructed with a point source in the usual manner, and the quality of the image is comparable to that from ordinary holograms. (Author)

Descriptors :   (*STEREOPHOTOGRAPHY, PHOTOGRAPHY), LASERS, DIFFUSERS, PHOTOGRAPHIC IMAGES, CANADA

Subject Categories : Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE